Stens Drive Wheel for 21-inch Self-Propelled Lawn Mowers, 43-Tooth Replacement — Silver, 8x2.25, 1/2-inch Bore

Stens Drive Wheel 205-670 is a direct-fit plastic replacement drive wheel for 21" self-propelled Lawn-Boy and Toro mowers that restores drive engagement with its 43-tooth radial tread design.

If your self-propelled mower is slipping, losing traction, or the drive system feels worn, replacing the drive wheel with a compatible part can bring reliable performance back without buying a new machine. This Stens wheel is manufactured to match the fit and function of OEM part 92-1042 and is compatible with Lawn-Boy M, Silver, Silver Pro, Gold Pro series and selected Toro models (20710, 20711, 20716). It’s a practical, cost-effective repair for common drive issues on 21" self-propelled walk-behind mowers.

How will this drive wheel improve my mower's performance?

Swapping in a fresh drive wheel removes worn teeth and a compacted tread that cause slipping and inconsistent engagement. The radial tread and correct tooth count help the transmission re-engage smoothly, making self-propelled drive effort predictable and efficient.

• Restores proper tooth engagement with 43 teeth matching OEM specifications
• Radial tread improves traction across lawn surfaces
• Precision bore and hub offset reduce wobble and vibration

Will this part fit my mower model and how do I confirm compatibility?

The Stens 205-670 is designed as a compatible replacement for OEM part 92-1042 used on many Lawn-Boy and Toro 21" self-propelled models. Confirm fit by matching part numbers, wheel dimensions, and hub measurements before ordering.

• Replaces Lawn-Boy and Toro part number 92-1042
• Compatible with Lawn-Boy M, Silver, Silver Pro, Gold Pro series
• Fits Toro models 20710, 20711, 20716 and similar self-propelled units

What are the key dimensions and install details I should check?

The wheel measures approximately 8 x 2.25 inches with a 1/2" bore and a 1 3/4" hub offset — critical measurements for proper seating on the drive shaft. A correct bore size and hub offset ensure the wheel aligns with the drive gears and avoids premature wear.

• Wheel size: 8 x 2.25 inches for 21" mower applications
• Bore: 1/2" to fit standard drive shafts; Hub offset: 1 3/4"
• 43 teeth on the drive wheel to match transmission engagement

How durable is the Stens replacement compared to OEM wheels?

Stens manufactures aftermarket components to meet replacement needs with materials and dimensions tuned to the original specification. While long-term durability depends on use and maintenance, this wheel’s plastic compound and tread pattern deliver dependable service for typical lawn-care conditions.

• Durable plastic construction suited for general mowing conditions
• Radial tread resists wear while maintaining traction
• Matches critical OEM dimensions to prevent drive system strain

Who is this for: This Stens Drive Wheel 205-670 is aimed at homeowners and small-property caretakers who want an economical, reliable repair for a slipping or non-engaging self-propelled drive on 21" Lawn-Boy and compatible Toro mowers. It's ideal for DIYers comfortable performing basic mower maintenance, small engine repair shops stocking replacement parts, and anyone looking to extend the life of a well-maintained walk-behind mower without replacing the entire unit.